But what was even more surprising to some is that he said it would actually be a four-seater with a backseat – something quite rare for supercars.

To this day, we have yet to have a look at the backseat of the working prototype.

But an unnamed source managed to get a look inside the white design prototype that Tesla bought to Grand Basel and shared a few pictures with Electrek:

It confirms that the white Roadster doesn’t have a complete interior, but Tesla did add fake front seats which result in a look at the dimensions of the back.

Based on those images, it looks like the next-gen Tesla Roadster could indeed have enough space for a somewhat cramped backseat, which is certainly impressive for a supercar.

That is if you order the base version of the vehicle because Musk said that Tesla also plans to offer a “SpaceX package”, which will include cold air thrusters powered by a system of air pumps and tanks that would take up the space for the backseat.

While buyers of this version of the Roadster would lose 2 seats, they would apparently gain some even more impressive performance than what Tesla already announced.

Tesla is trying to bring the vehicle to market by 2020 and make it the quickest and fastest production car on the market – and it just happens to be all-electric.

The automaker is currently taking reservations for the $200,000 base version with an insane $50,000 deposit and for the $250,000 Founders Series for an even more insane $250,000 deposit.